#!/bin/bash

# Slackware build script for bin2iso

# Original written by Hunter Sezen.
# Modified and now maintained by B. Watson <urchlay@slackware.uk>.

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20240829 bkw:
# - new maintainer.
# - fix VERSION: it was "19b", for version 1.9b.
# - use a non-slackware.uk download URL, since it sucks to keep the
#   original and the backup (sbosrcarch) on the same server.
# - use a tarball that includes upstream's readme.
# - fix a couple of compiler warnings.
# - use a homepage that actually works.
# - mention CD images in README and slack-desc.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=bin2iso
VERSION=${VERSION:-1.9b}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

# 20240829 bkw: no tags in the github repo, use the one and only
# commit tarball.
COMMIT=${COMMIT:-a08f6f93b833878dc009fe59da072643f06a7830}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$COMMIT
tar xvf $CWD/$PRGNAM-$COMMIT.tar.gz --wildcards '*/*.txt' '*/src/linux_macos/*.c'
cd $PRGNAM-$COMMIT
chown -R root:root .
find . -type f -exec chmod 644 {} + -o -type d -exec chmod 755 {} +

# 20240829 bkw: Fix a couple of warnings, the ones we get *without* -Wall.
# One of these constitutes an actual bug, but it only affects files that
# aren't an even number of CD sectors (premature EOF; the last sector was
# supposed to be zero-filled, but it used == instead of = for assignment).
# Not gonna worry about the -Wall ones for now.
patch -p1 < $CWD/fixwarnings.diff

# 20240829 bkw: WALL=yes for my own use.
[ "${WALL:-no}" = "yes" ] && SLKCFLAGS+=" -Wall"

# 20240829 bkw: -Wl,-s builds stripped binaries.
mkdir -p $PKG/usr/bin
${CC:-cc} $SLKCFLAGS -Wl,-s -o $PKG/usr/bin/$PRGNAM src/linux_macos/*.c

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a README.txt $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE